Model EFSS - Self Supported Furnace Extensometer
For use with furnace and induction heating systems, these extensometers feature our innovative self-supported attachment system.
Model EFSS furnace extensometer is designed around
our new, self-supported mounting system. This innovative design
sends the mounting force axially down the ceramic rods eliminating the bending moment,
measurement errors, and zero shift found in the competition's
models.
This design also allows easy attachment and contact force adjustment.
Ideal for use with furnace or induction heating, these extensometers use
high purity alumina ceramic rods and cords to allow use up to +2200 °F [+1200 °C].
For enhanced stability at temperatures over +1200 °F [+650 °C], an optional electric
cooling fan is available. The cooling fan is not normally
needed for induction heated tests.
All model EFSS extensometers feature a full, 350 ohm, strain gage bridge
design
and are compatible with most any brand test equipment. We can
install the proper connector to interface to most any electronics
including Instron. If your test frame or set-up does not have
the required strain signal conditioner, we can supply stand-alone
electronics calibrated with your extensometer. This will
allow you to use a chart recorder, digital display, or data
acquisition card.
All standard models meet ASTM B-1 and ISO 9513, class 0,5 accuracy
requirements. Each extensometer comes with an inspection
certificate traceable to NIST, a spare parts kit, a
spare set of ceramic rods and cords, and a quality, foam lined,
plastic case.
Standard models available in any combination of measuring
range and temperature range listed below. If you need an
extensometer in a configuration other than what is listed, please
contact us with you specific needs.
Features
- May be left on through specimen failure.
- Full Wheatstone Bridge, 350 ohm, strain gage design.
- Linearity of 0.15% or better for most standard models.
- Rugged, true, dual flexure design for improved performance.
- All models measure both positive and negative displacements.
- Packaged in high quality, foam lined, case.
- Self-supporting and easy to mount and adjust with our easy to use attachment system.
Specifications
Excitation: 5 to 10 VDC recommended, 12 VDC or VAC maximum
Output: 2 to 4 mV/V nominal
Linearity: 0.10% to 0.15% of full measuring range
Cable: Ultra-flexible, 8 ft. (2.5 m) standard cable
Warranty: Full one year warranty
Options
Bare leads or connector to interface to most any brand test equipment
Spare ceramic rods with straight chisel or conical tips
Optional cooling fan
Click Here for more information or a quote with price and delivery!